CN111073575A - Single-component silane modified polyether sealant for prefabricated building and preparation method thereof - Google Patents
Single-component silane modified polyether sealant for prefabricated building and preparation method thereof Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J171/00—Adhesives based on polyethers obtained by reactions forming an ether link in the main chain; Adhesives based on derivatives of such polymers
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Abstract
The invention discloses a single-component silane modified polyether sealant for an assembly type building and a preparation method thereof, and relates to the technical field of sealants; the composition comprises the following raw materials in parts by weight: 90-140 parts of silane modified polyether resin, 60-120 parts of plasticizer, 120-250 parts of filler, 5-10 parts of thixotropic agent, 0-10 parts of coloring agent, 1-3 parts of antioxidant, 1-3 parts of light stabilizer, 1-3 parts of ultraviolet absorbent, 1-5 parts of water removing agent, 1-5 parts of coupling agent and 0.1-3 parts of catalyst; the main synthetic method of the silane modified polyether resin is to add macromolecular monofunctional polyether into a 500ml glass reaction kettle, and start stirring simultaneously; 5-8 parts of isocyanate-based trimethoxy silane coupling agent is dripped into the reaction kettle and cured; macromolecule monofunctional polyether is introduced into conventional silane modified polyether, so that the modulus is reduced, the elastic recovery rate is improved, and the bonding effect on concrete is better.
Description
Technical Field
The invention belongs to the technical field of sealants, and particularly relates to a single-component silane modified polyether sealant for an assembly type building and a preparation method thereof.
Background
The assembly type building is formed by conveying prefabricated components produced in a factory to a construction site and assembling, and has the characteristics of standardized design, factory production and assembly type production; compared with the traditional building, the fabricated building has the advantages of energy conservation, water conservation, electricity conservation, shortening construction period, reducing dependence on manpower, reliable quality, environmental protection and the like.
The silane modified polyether sealant has the characteristics of low modulus, good resilience, lasting bonding, surface painting, no pollution to the surface of a base material and the like, and is particularly suitable for waterproofing of assembly type building joints.
The traditional silicone sealant has the characteristics of good rebound resilience, weather resistance and the like, but also has the problems of seepage and pollution on an adhesive base material and poor surface finishing property; the polyurethane sealant has the characteristics of high strength, good elasticity and the like, but has poor water resistance and alkali resistance.
Disclosure of Invention
Aiming at solving the problems in the prior art; the invention aims to provide a single-component silane modified polyether sealant for an assembly type building, which has excellent rebound resilience and adhesion, is environment-friendly and low in pollution, and can be painted on the surface, and a preparation method thereof.
The invention relates to a single-component silane modified polyether sealant for an assembly type building, which is prepared from the following raw materials in parts by weight: 90-140 parts of silane modified polyether resin, 60-120 parts of plasticizer, 120-250 parts of filler, 5-10 parts of thixotropic agent, 0-10 parts of coloring agent, 1-3 parts of antioxidant, 1-3 parts of light stabilizer, 1-3 parts of ultraviolet absorbent, 1-5 parts of water removing agent, 1-5 parts of coupling agent and 0.1-3 parts of catalyst;
the preparation method of the single-component silane modified polyether sealant for the prefabricated building comprises the following steps:
1. uniformly mixing the plasticizer, the filler, the coloring agent, the thixotropic agent and the antioxidant, wherein the vacuum degree is less than-0.09 Mpa; vacuumizing and stirring for 60-120min at the temperature of 100-;
2. cooling to below 50 deg.C, adding silane modified polyether resin, ultraviolet absorbent and light stabilizer, stirring, and stirring under vacuum degree below-0.09 Mpa for 20-40 min;
3. controlling the temperature to be less than 50 ℃, adding a water removing agent, a coupling agent and a catalyst, stirring uniformly, vacuumizing and stirring for 20min under the condition that the vacuum degree is less than-0.09 Mpa, and preparing the rubber;
the silane modified polyether resin adopts macromolecular monofunctional polyether and bifunctional polyether mixed polyether as a main chain segment of a molecular chain, the macromolecular monofunctional polyether provides flexibility and wettability of the resin, and the macromolecular bifunctional polyether provides resilience and adhesive property of the resin, so that the synthesized resin has the characteristics of good resilience, weather resistance, adhesion, low modulus and the like;
the main synthesis method of the silane modified polyether resin comprises the steps of adding 40-60 parts of macromolecular monofunctional polyether (with the molecular weight of 8000-; 5-8 parts of isocyanate-based trimethoxy silane coupling agent is dripped into a reaction kettle, the reaction temperature is 70-80 ℃, the dripping time is about 3 hours, and the system keeps the original temperature; the reaction was completed after 1h of aging.
Preferably, the plasticizer is an o-benzene plasticizer; DINP, DIDP or polyether polyol plasticizers; PPG2000, PPG3000, PPG 4000.
The filler is heavy calcium carbonate, active nano calcium carbonate or talcum powder.
The thixotropic agent is polyamide wax; crayvallac SL or hydrogenated castor oil.
The colorant is titanium dioxide or carbon black.
The antioxidant is hindered phenol antioxidant; irganox1010, 1076, 245/1035.
The light stabilizer is hindered amine; tinuvin765, 770.
The ultraviolet absorbent is salicylate, substituted acrylonitrile, benzophenone, triazine compounds or benzotriazole compounds; UV-326, 327.
The water removing agent is vinyl trimethoxy silane; a-171.
The coupling agent is N- (β -aminoethyl) -gamma-aminopropyltrimethoxysilane, gamma-glycidoxypropyltrimethoxysilane, N- (β -aminoethyl) -gamma-aminopropylmethyldimethoxysilane, aminopropyltrimethoxysilane or aminopropyltriethoxysilane.
The catalyst is organic tin; one or more of dibutyltin dilaurate, dibutyltin diacetate, stannous octoate, dibutyltin oxide and dibutyltin diacetate.
Compared with the prior art, the invention has the beneficial effects that: macromolecule monofunctional polyether is introduced into conventional silane modified polyether, so that the modulus is reduced, the elastic recovery rate is improved, and the bonding effect on concrete is better; the single-component silane modified polyether sealant has excellent rebound resilience and adhesion, and has the advantages of environmental protection, low pollution, paint brushing on the surface and the like.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described below by way of specific embodiments. It is to be understood that such description is merely illustrative and not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
It should be noted that, in order to avoid obscuring the present invention with unnecessary details, only the structures and/or processing steps closely related to the scheme according to the present invention are shown below, and other details not closely related to the present invention are omitted.
The first embodiment is as follows:
the preparation method of the single-component silane modified polyether sealant for the fabricated building in the specific embodiment comprises the following steps:
1. evenly mixing 80 parts of o-benzene plasticizer DINP, 140 parts of active nano calcium carbonate, 5 parts of titanium dioxide, 3 parts of hydrogenated castor oil and 10101 parts of hindered phenol antioxidant Irganox, wherein the vacuum degree is less than-0.09 Mpa; vacuumizing and stirring for 60-120min at the temperature of 100-;
2. synthesizing silane modified polyether resin:
adding 55 parts of macromolecular monofunctional polyether (with the molecular weight of 8000-; 6 parts of isocyanate-based trimethoxy silane coupling agent is dripped into a reaction kettle, the reaction temperature is 70-80 ℃, the dripping time is about 3 hours, and the system keeps the original temperature; after curing for 1h, finishing the reaction, namely generating the low-modulus silane modified polyether STP resin for the fabricated building for later use;
3. cooling to less than 50 ℃, and then adding 100 parts of silane modified polyether resin in the step 2; then adding 1 part of triazine compound and 7651 part of hindered amine Tinuvin, stirring uniformly, vacuumizing and stirring for 20-40min under the condition that the vacuum degree is less than-0.09 Mpa;
4. controlling the temperature to be less than 50 ℃, adding vinyl trimethoxy silane A-1715 parts, aminopropyl trimethoxy silane 135 parts and dibutyltin dilaurate 0.6 parts, uniformly stirring, and vacuumizing and stirring for 20min under the condition that the vacuum degree is less than-0.09 Mpa to finish the rubber preparation.
Example two:
the preparation method of the single-component silane modified polyether sealant for the fabricated building in the specific embodiment comprises the following steps:
1. uniformly mixing a polyether polyol plasticizer PPG 200060 part, heavy calcium carbonate 130 part, carbon black 10 part, polyamide wax Crayvallac SL5 part and a hindered phenol antioxidant Irganox 10761 part, wherein the vacuum degree is less than-0.09 Mpa; vacuumizing and stirring for 60-120min at the temperature of 100-;
2. synthesizing silane modified polyether resin:
adding 45 parts of macromolecular monofunctional polyether (with the molecular weight of 8000-; 7 parts of isocyanate-based trimethoxy silane coupling agent is dripped into a reaction kettle, the reaction temperature is 75 ℃, the dripping time is about 3 hours, and the system keeps the original temperature; after curing for 1h, finishing the reaction, namely generating the low-modulus silane modified polyether STP resin for the fabricated building for later use;
3. cooling to less than 50 ℃, and adding 120 parts of silane modified polyether resin in the step 2; then adding 1 part of benzophenone and 7701 parts of hindered amine Tinuvin, stirring uniformly, and vacuumizing and stirring for 20-40min under the condition that the vacuum degree is less than-0.09 Mpa;
4. controlling the temperature to be less than 50 ℃, adding vinyl trimethoxy silane A-1715 parts, aminopropyl triethoxy silane 2 parts and dibutyltin diacetate 0.2 parts, uniformly stirring, vacuumizing and stirring for 20min under the condition that the vacuum degree is less than-0.09 Mpa, and preparing the rubber.
Example three:
the preparation method of the single-component silane modified polyether sealant for the fabricated building in the specific embodiment comprises the following steps:
1. uniformly mixing 70 parts of o-benzene plasticizer DIDP, 120 parts of active nano calcium carbonate, 10 parts of titanium dioxide, 5 parts of polyamide wax Crayvallac SL and 10101 parts of hindered phenol antioxidant Irganox, wherein the vacuum degree is less than-0.09 Mpa; vacuumizing and stirring for 60-120min at the temperature of 100-;
2. synthesizing silane modified polyether resin:
adding 55 parts of macromolecular monofunctional polyether (with the molecular weight of 8000-; 8 parts of isocyanate-based trimethoxy silane coupling agent is dripped into a reaction kettle, the reaction temperature is 70-80 ℃, the dripping time is about 3 hours, and the system keeps the original temperature; after curing for 1h, finishing the reaction, namely generating the low-modulus silane modified polyether STP resin for the fabricated building for later use;
3. cooling to below 50 ℃, adding 130 parts of silane modified polyether resin in the step 2, adding 1 part of salicylate and 7651 part of hindered amine Tinuvin, stirring uniformly, and vacuumizing and stirring for 20-40min under the condition that the vacuum degree is lower than-0.09 Mpa;
4. controlling the temperature to be less than 50 ℃, adding vinyl trimethoxy silane A-1715 parts, N- (β -aminoethyl) -gamma-aminopropyl trimethoxy silane 1 part and dibutyltin dilaurate 1 part, uniformly stirring, vacuumizing and stirring for 20min under the condition that the vacuum degree is less than-0.09 Mpa, and preparing the rubber.
Comparative example one:
the preparation method of the single-component silane modified polyether sealant for the fabricated building in the specific embodiment comprises the following steps:
1. uniformly mixing PPG 300080 parts of polyether polyol plasticizer, DINP80 parts of o-benzene plasticizer, 5 parts of titanium dioxide, 3 parts of hydrogenated castor oil and 10351 parts of hindered phenol antioxidant Irganox 10351, wherein the vacuum degree is lower than-0.09 Mpa; vacuumizing and stirring for 60-120min at the temperature of 100-;
2. cooling to below 50 deg.C, adding silane modified polyether resin 30000T 120 parts, benzophenone 1 part, and hindered amine Tinuvin 7651 part, stirring, and stirring under vacuum degree lower than-0.09 Mpa for 20-40 min;
3. controlling the temperature to be less than 50 ℃, adding vinyl trimethoxy silane A-1715 parts, aminopropyl trimethoxy silane 1.5 parts and dibutyltin dilaurate 0.5 parts, uniformly stirring, vacuumizing and stirring for 20min under the condition that the vacuum degree is less than-0.09 Mpa, and completing glue making: the parts in the above examples are parts by weight.
According to the standard test of JC/T881-2017 building sealant for concrete joint, the detection results are as follows:
| detecting items | Example 1 | Example 2 | Example 3 | Comparative example 1 |
| Tensile modulus/MPa | 0.25 | 0.23 | 0.27 | 0.58 |
| Elongation at break | 683 | 756 | 690 | 471 |
| Elastic recovery rate% | 86 | 85 | 90 | 70 |
| Tack and stretch adhesion | Without destruction | Without destruction | Without destruction | Destruction of mixing |
| Fixed-elongation adhesion after immersion in water | Without destruction | Without destruction | Without destruction | Destruction of mixing |
Table 1: comparing the detection data of the first embodiment to the detection data of the first embodiment;
compared with the first comparative example, the conventional silane modified polyether resin added in the first comparative example has higher modulus and general elastic recovery rate, and the fixed elongation and the water-soaked bonding can be damaged; in the first to third examples, macromolecule monofunctional polyether is introduced into conventional silane modified polyether, so that the modulus is reduced, the elastic recovery rate is improved, and the bonding effect on concrete is better.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (7)
1. The single-component silane modified polyether sealant for the prefabricated building is characterized by comprising the following components in parts by weight: the composition comprises the following raw materials in parts by weight: 90-140 parts of silane modified polyether resin, 60-120 parts of plasticizer, 120-250 parts of filler, 5-10 parts of thixotropic agent, 0-10 parts of coloring agent, 1-3 parts of antioxidant, 1-3 parts of light stabilizer, 1-3 parts of ultraviolet absorbent, 1-5 parts of water removing agent, 1-5 parts of coupling agent and 0.1-3 parts of catalyst;
the main synthetic method of the silane modified polyether resin is that 40-60 parts of macromolecular monofunctional polyether and 80-100 parts of macromolecular bifunctional polyether are added into a 500ml glass reaction kettle, and stirring is started simultaneously; 5-8 parts of isocyanate-based trimethoxy silane coupling agent is dripped into a reaction kettle, the reaction temperature is 70-80 ℃, the dripping time is about 3 hours, and the system keeps the original temperature; the reaction was completed after 1h of aging.
2. The preparation method of the one-component silane modified polyether sealant for the fabricated building as claimed in claim 1, wherein the one-component silane modified polyether sealant comprises the following steps: the preparation method comprises the following steps:
(1) uniformly mixing the plasticizer, the filler, the coloring agent, the thixotropic agent and the antioxidant, wherein the vacuum degree is less than-0.09 Mpa; vacuumizing and stirring for 60-120min at the temperature of 100-;
(2) cooling to below 50 deg.C, adding silane modified polyether resin, ultraviolet absorbent and light stabilizer, stirring, and stirring under vacuum degree lower than-0.09 Mpa for 20-40 min;
(3) controlling the temperature to be less than 50 ℃, adding a water removing agent, a coupling agent and a catalyst, stirring uniformly, vacuumizing and stirring for 20min under the condition that the vacuum degree is less than-0.09 Mpa, and preparing the rubber.
3. The one-component silane modified polyether sealant for the fabricated building as claimed in claim 1, wherein: the plasticizer is an o-benzene plasticizer; DINP, DIDP or polyether polyol plasticizers; PPG2000, PPG3000, PPG 4000;
the filler is heavy calcium carbonate, active nano calcium carbonate or talcum powder;
the thixotropic agent is polyamide wax; crayvallac SL or hydrogenated castor oil;
the colorant is titanium dioxide or carbon black.
4. The one-component silane modified polyether sealant for the fabricated building as claimed in claim 1, wherein: the antioxidant is hindered phenol antioxidant; irganox1010, 1076, 245/1035;
the light stabilizer is hindered amine; tinuvin765, 770;
the ultraviolet absorbent is salicylate, substituted acrylonitrile, benzophenone, triazine compounds or benzotriazole compounds; UV-326, 327;
the coupling agent is N- (β -aminoethyl) -gamma-aminopropyltrimethoxysilane, gamma-glycidoxypropyltrimethoxysilane, N- (β -aminoethyl) -gamma-aminopropylmethyldimethoxysilane, aminopropyltrimethoxysilane or aminopropyltriethoxysilane;
the catalyst is organic tin; one or more of dibutyltin dilaurate, dibutyltin diacetate, stannous octoate, dibutyltin oxide and dibutyltin diacetate.
5. The preparation method of the one-component silane modified polyether sealant for the fabricated building as claimed in claim 2, wherein the one-component silane modified polyether sealant comprises the following steps: the preparation method comprises the following steps:
(1) uniformly mixing 80 parts of o-benzene plasticizer DINP, 140 parts of active nano calcium carbonate, 5 parts of titanium dioxide, 3 parts of hydrogenated castor oil and 10101 parts of hindered phenol antioxidant Irganox, wherein the vacuum degree is less than-0.09 Mpa; vacuumizing and stirring for 60-120min at the temperature of 100-;
(2) and synthesizing the silane modified polyether resin:
adding 55 parts of macromolecular monofunctional polyether and 85 parts of macromolecular bifunctional polyether into a 500ml glass reaction kettle, and starting stirring simultaneously; 6 parts of isocyanate-based trimethoxy silane coupling agent is dripped into a reaction kettle, the reaction temperature is 70-80 ℃, the dripping time is about 3 hours, and the system keeps the original temperature; after curing for 1h, finishing the reaction, namely generating the low-modulus silane modified polyether STP resin for the fabricated building for later use;
(3) cooling to less than 50 ℃, and then adding 100 parts of silane modified polyether resin in the step 2; then adding 1 part of triazine compound and 7651 part of hindered amine Tinuvin, stirring uniformly, vacuumizing and stirring for 20-40min under the condition that the vacuum degree is less than-0.09 Mpa;
(4) controlling the temperature to be less than 50 ℃, adding vinyl trimethoxy silane A-1715 parts, aminopropyl trimethoxy silane 135 parts and dibutyltin dilaurate 0.6 parts, uniformly stirring, and vacuumizing and stirring for 20min under the condition that the vacuum degree is less than-0.09 Mpa to finish the rubber preparation.
6. The preparation method of the one-component silane modified polyether sealant for the fabricated building as claimed in claim 2, wherein the one-component silane modified polyether sealant comprises the following steps: the preparation method comprises the following steps:
(1) uniformly mixing a polyether polyol plasticizer PPG 200060 part, a heavy calcium carbonate 130 part, a carbon black 10 part, a polyamide wax Crayvallac SL5 part and a hindered phenol antioxidant Irganox 10761 part, wherein the vacuum degree is less than-0.09 Mpa; vacuumizing and stirring for 60-120min at the temperature of 100-;
(2) and synthesizing the silane modified polyether resin:
adding 45 parts of macromolecular monofunctional polyether and 90 parts of macromolecular bifunctional polyether into a 500ml glass reaction kettle, and starting stirring simultaneously; 7 parts of isocyanate-based trimethoxy silane coupling agent is dripped into a reaction kettle, the reaction temperature is 75 ℃, the dripping time is about 3 hours, and the system keeps the original temperature; after curing for 1h, finishing the reaction, namely generating the low-modulus silane modified polyether STP resin for the fabricated building for later use;
(3) cooling to less than 50 ℃, and adding 120 parts of silane modified polyether resin in the step 2; then adding 1 part of benzophenone and 7701 parts of hindered amine Tinuvin, stirring uniformly, and vacuumizing and stirring for 20-40min under the condition that the vacuum degree is less than-0.09 Mpa;
(4) controlling the temperature to be less than 50 ℃, then adding vinyl trimethoxy silane A-1715 parts, aminopropyl triethoxy silane 2 parts and dibutyltin diacetate 0.2 parts, uniformly stirring, vacuumizing and stirring for 20min under the condition that the vacuum degree is less than-0.09 Mpa, and preparing the rubber.
7. The preparation method of the one-component silane modified polyether sealant for the fabricated building as claimed in claim 2, wherein the one-component silane modified polyether sealant comprises the following steps: the preparation method comprises the following steps:
(1) uniformly mixing 70 parts of o-benzene plasticizer DIDP, 120 parts of active nano calcium carbonate, 10 parts of titanium dioxide, 5 parts of Crayvallac SL and 10101 parts of hindered phenol antioxidant Irganox, wherein the vacuum degree is less than-0.09 Mpa; vacuumizing and stirring for 60-120min at the temperature of 100-;
(2) and synthesizing the silane modified polyether resin:
adding 55 parts of macromolecular monofunctional polyether and 90 parts of macromolecular bifunctional polyether into a 500ml glass reaction kettle, and starting stirring simultaneously; 8 parts of isocyanate-based trimethoxy silane coupling agent is dripped into a reaction kettle, the reaction temperature is 70-80 ℃, the dripping time is about 3 hours, and the system keeps the original temperature; after curing for 1h, finishing the reaction, namely generating the low-modulus silane modified polyether STP resin for the fabricated building for later use;
(3) cooling to below 50 ℃, adding 130 parts of silane modified polyether resin in the step 2, adding 1 part of salicylate and 7651 part of hindered amine Tinuvin, stirring uniformly, and vacuumizing and stirring for 20-40min under the condition that the vacuum degree is lower than-0.09 Mpa;
(4) controlling the temperature to be less than 50 ℃, then adding vinyl trimethoxy silane A-1715 parts, N- (β -aminoethyl) -gamma-aminopropyl trimethoxy silane 1 part and dibutyltin dilaurate 1 part, uniformly stirring, vacuumizing and stirring for 20min under the condition that the vacuum degree is less than-0.09 Mpa, and preparing the rubber.
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| CN112795001A (en) * | 2020-12-30 | 2021-05-14 | 武汉奥克特种化学有限公司 | Low-modulus silane modified polyether and preparation method and application thereof |
| CN113388353A (en) * | 2021-06-04 | 2021-09-14 | 浙江皇马科技股份有限公司 | Silane modified polyether nail-free glue and preparation method thereof |
| CN113416511A (en) * | 2021-06-09 | 2021-09-21 | 广东工程职业技术学院 | Novel MS sealant for fabricated concrete and preparation method thereof |
| CN113416209A (en) * | 2021-07-07 | 2021-09-21 | 广州市白云化工实业有限公司 | Fluorine-containing cleaning agent and self-cleaning condensed type silane modified polyether adhesive |
| CN113527629A (en) * | 2021-06-15 | 2021-10-22 | 深圳市百丽春粘胶实业有限公司 | High-weather-resistance high-performance modified polyether resin and sealant for building exterior wall |
| CN113845869A (en) * | 2021-11-16 | 2021-12-28 | 广西华纳新材料科技有限公司 | Aging-resistant silane modified polyether sealant for buildings and preparation method thereof |
| CN114015400A (en) * | 2021-11-15 | 2022-02-08 | 江苏瑞洋安泰新材料科技有限公司 | Silane modified polyether sealant for fabricated building and preparation method thereof |
| CN114479054A (en) * | 2022-02-24 | 2022-05-13 | 浙江皇马科技股份有限公司 | Preparation method and application of monoalcohol polyether |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112795001A (en) * | 2020-12-30 | 2021-05-14 | 武汉奥克特种化学有限公司 | Low-modulus silane modified polyether and preparation method and application thereof |
| CN113388353B (en) * | 2021-06-04 | 2023-03-07 | 浙江皇马科技股份有限公司 | Silane modified polyether nail-free glue and preparation method thereof |
| CN113388353A (en) * | 2021-06-04 | 2021-09-14 | 浙江皇马科技股份有限公司 | Silane modified polyether nail-free glue and preparation method thereof |
| CN113416511A (en) * | 2021-06-09 | 2021-09-21 | 广东工程职业技术学院 | Novel MS sealant for fabricated concrete and preparation method thereof |
| CN113416511B (en) * | 2021-06-09 | 2023-09-26 | 广东工程职业技术学院 | MS sealant for assembled concrete and preparation method thereof |
| CN113527629A (en) * | 2021-06-15 | 2021-10-22 | 深圳市百丽春粘胶实业有限公司 | High-weather-resistance high-performance modified polyether resin and sealant for building exterior wall |
| CN113527629B (en) * | 2021-06-15 | 2023-05-23 | 深圳市百丽春粘胶实业有限公司 | Modified polyether resin for high-weather-resistance high-performance building outer wall and sealant |
| CN113416209A (en) * | 2021-07-07 | 2021-09-21 | 广州市白云化工实业有限公司 | Fluorine-containing cleaning agent and self-cleaning condensed type silane modified polyether adhesive |
| CN113416209B (en) * | 2021-07-07 | 2022-08-09 | 广州市白云化工实业有限公司 | Fluorine-containing cleaning agent and self-cleaning condensed type silane modified polyether adhesive |
| CN114015400B (en) * | 2021-11-15 | 2023-03-14 | 江苏瑞洋安泰新材料科技有限公司 | Silane modified polyether sealant for fabricated building and preparation method thereof |
| CN114015400A (en) * | 2021-11-15 | 2022-02-08 | 江苏瑞洋安泰新材料科技有限公司 | Silane modified polyether sealant for fabricated building and preparation method thereof |
| CN113845869A (en) * | 2021-11-16 | 2021-12-28 | 广西华纳新材料科技有限公司 | Aging-resistant silane modified polyether sealant for buildings and preparation method thereof |
| CN114479054A (en) * | 2022-02-24 | 2022-05-13 | 浙江皇马科技股份有限公司 | Preparation method and application of monoalcohol polyether |
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